#include<iostream>

#define ll long long

using namespace std;

int main()
{
    ll x,y; cin >> x >> y;

    if(x == 0 && y == 0)
    {
        cout << 0 << endl;
        return 0;
    }

    ll ans = 0;
    if(x != 0)ans++;
    if(y != 0)ans++;
    
    if(x == y || x == -y) cout << 1 << endl;
    else cout << ans << endl;

    
    return 0;
}